Are E Cigarettes Safe During Pregnancy? American Pregnancy Assoc. E cigarettes aren't risk free, but they are much less harmful than smoking. Take a look at the poster below for more information and advice about using e cigarettes during pregnancy Impact of electronic cigarette aerosols on pregnancy and early development ScienceDirect Vaping may seem safer than smoking, but it's not risk freeespecially for your baby. Nicotine, heavy metals, and other toxic chemicals in e cigarettes can affect fetal growth, brain development, and long term health. Even Achat cigarette lectronique et e liquide Armes & Liquides Vaping while pregnant isn't harmlessstudy uncovers risks to newborn lung health